$462+ Cheap flights from Honolulu (HNL) to Porto (OPO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — OPO
Sep 4 — Sep 111
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Honolulu to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Honolulu to Porto
Cheapest
Best
Last-minute
One-way
Cheapest flights from Honolulu to PortoExplore the most affordable flight options available from Honolulu to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2026.
Explore the most affordable flight options available from Honolulu to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2026.
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:50 pm -
2 stops31h 45m
Fri 11/275:00 am -
2 stops25h 55m
Deal found 8/1![Delta logo]()
$782
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:55 pm -
2 stops30h 35m
Thu 11/1912:35 pm -
1 stop36h 25m
Deal found 7/31![United Airlines logo]()
$874
This Expedia deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:50 pm -
2 stops22h 20m
Sun 10/251:45 pm -
2 stops63h 45m
Deal found 7/31![Multiple Airlines logo]()
$935
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:50 pm -
2 stops25h 40m
Fri 11/2712:35 pm -
1 stop36h 25m
Deal found 8/5![United Airlines logo]()
$1,066
This KLM deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm -
2 stops29h 45m
Mon 9/77:55 pm -
2 stops34h 33m
Deal found 8/4![KLM logo]()
$1,086
This Air France deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:00 am -
2 stops28h 30m
Mon 8/108:00 pm -
2 stops34h 11m
Deal found 8/2![Multiple Airlines logo]()
$1,132
This KLM deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:46 pm -
2 stops29h 44m
Mon 8/108:00 pm -
2 stops34h 11m
Deal found 7/31![KLM logo]()
$1,135
Best flights from Honolulu to PortoDiscover carefully curated flight deals from Honolulu to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
Discover carefully curated flight deals from Honolulu to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:55 pm -
2 stops30h 35m
Thu 11/1912:35 pm -
1 stop36h 25m
Deal found 7/31![United Airlines logo]()
$874
This Air Canada deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:55 pm -
2 stops30h 25m
Thu 11/196:00 am -
2 stops25h 40m
Deal found 8/2![Air Canada logo]()
$897
This Expedia deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:50 pm -
2 stops22h 20m
Sun 10/251:45 pm -
2 stops63h 45m
Deal found 7/31![Multiple Airlines logo]()
$935
This KLM deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm -
2 stops29h 45m
Mon 9/77:55 pm -
2 stops34h 33m
Deal found 8/4![KLM logo]()
$1,086
Last-minute flights from Honolulu to PortoDiscover last-minute flight deals from Honolulu to Porto. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from Honolulu to Porto. Data last updated August 5, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:00 pm -
2 stops28h 00m
Mon 9/76:20 am -
2 stops23h 55m
Deal found 8/1![Lufthansa logo]()
$1,164
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am -
3 stops37h 00m
Mon 9/712:10 pm -
2 stops42h 38m
Deal found 8/1![United Airlines logo]()
$1,331
This Scandinavian Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am -
3 stops28h 15m
Mon 9/75:00 am -
3 stops27h 20m
Deal found 8/1![Scandinavian Airlines logo]()
$2,348
This KLM deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm -
2 stops29h 45m
Mon 9/77:55 pm -
2 stops34h 33m
Deal found 8/4![KLM logo]()
$1,086
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:50 pm -
1 stop31h 40m
Mon 9/75:00 am -
2 stops27h 20m
Deal found 8/4![Delta logo]()
$2,182
This Mytrip deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:50 pm -
2 stops22h 10m
Mon 9/76:20 am -
3 stops25h 15m
Deal found 8/4![Multiple Airlines logo]()
$2,307
This Scandinavian Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am -
3 stops28h 05m
Mon 9/75:00 am -
3 stops27h 20m
Deal found 8/4![Scandinavian Airlines logo]()
$2,452
One-way flights from Honolulu to PortoSearch for one-way flight options from Honolulu to Porto. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
Search for one-way flight options from Honolulu to Porto. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
This Air Canada deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:50 pm -
2 stops22h 10m
Deal found 8/4![Air Canada logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am -
2 stops36h 55m
Deal found 8/4![United Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:49 pm -
2 stops39h 11m
Deal found 8/4![Delta logo]()
$467
This Lufthansa deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am -
2 stops29h 25m
Deal found 8/4![Lufthansa logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:50 pm -
3 stops33h 35m
Deal found 8/4![Multiple Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:00 pm -
2 stops47h 55m
Deal found 8/4![United Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:50 pm -
3 stops30h 10m
Deal found 8/4![Multiple Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:50 pm -
3 stops34h 15m
Deal found 8/4![Multiple Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:55 pm -
2 stops43h 10m
Deal found 8/4![Delta logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:30 am -
3 stops29h 10m
Deal found 8/4![Multiple Airlines logo]()
$558
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:50 am -
3 stops33h 00m
Deal found 8/4![Multiple Airlines logo]()
$579
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:30 am -
3 stops36h 50m
Deal found 8/4![Multiple Airlines logo]()
$588
Find flight deals from Honolulu to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Honolulu (HNL) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 5, 2026.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $782 (Delta) |
One-way from | $462 (Air Canada) |
Cheapflights Fare Finder
Customize your flight search to find flights from Honolulu to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 5, 2026.
Use the filters below to find and compare flights from Honolulu to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 11/15
4:55 pm-9:30 am
2 stops30h 35m
Porto
Thu 11/19
12:35 pm-3:00 pm
1 stop36h 25m
$874
Quickest round-trip
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 11/15
10:55 pm-3:20 pm
2 stops30h 25m
Porto
Thu 11/19
6:00 am-9:40 pm
2 stops25h 40m
$897
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Thu 10/15
9:50 pm-7:10 am
2 stops22h 20m
Porto
Sun 10/25
1:45 pm-7:30 pm
2 stops63h 45m
$935
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Tue 9/1
10:45 pm-3:30 pm
2 stops29h 45m
Porto
Mon 9/7
7:55 pm-7:28 pm
2 stops34h 33m
$1,086
Cheapest one-way
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 9/20
7:00 am-6:55 am
2 stops36h 55m
$463
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sat 9/19
7:49 pm-10:00 pm
2 stops39h 11m
$467
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Wed 9/16
7:00 am-11:25 pm
2 stops29h 25m
$471
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Thu 9/17
3:55 pm-10:05 pm
2 stops43h 10m
$527
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Fri 9/18
7:30 am-7:20 am
3 stops36h 50m
$588
Quickest one-way
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Mon 8/10
9:55 pm-7:00 am
2 stops22h 05m
$661
Showing 1-10 of 12 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Honolulu-Porto flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Honolulu-Porto flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Honolulu-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Honolulu-Porto flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Honolulu-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Honolulu to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Honolulu with our price prediction graph.
HNL-OPO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated August 5, 2026.
Read reviews from past customers who have flown United Airlines from Honolulu to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Comfort
7.3
Food
6.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Boarding
7.7
Comfort
7.3
Food
6.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Honolulu to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Honolulu
Popular flights
Porto flight routes
Alternative routes for Honolulu to Porto
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Porto by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Honolulu to Porto by cabin class
Find flights from Honolulu to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Honolulu and Porto flights
Browse other Honolulu and Porto flight options. Last updated on August 5, 2026.
Other flights from Honolulu
Browse through other flights departing from Honolulu. Flights are based on user searches made on Cheapflights and were last updated on August 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 5, 2026.
Top airline flying from Honolulu to Porto
Discover the top airline that operate flights from Honolulu to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$588 | Average$693 | FlexibilityNo cancel fee | On-time69% |